Lemme dig it out and see what condition its in. I remember that came from a bulk board buy around 12 years ago and it still had the battery on it (that I promptly ripped off). I do remember cleaning and neutralizing the area of the board that showed signs of battery gassing, but that stuff can come back even after you clean it. I never bothered to go any further with it since I converted the set to Berzerk and wasn't interested in Frenzy at the time.
Funny....I never even played the Berzerk set. I was in the middle of repairing 30-40 boards and when I got this one to come up on a monitor and it coined and the sounds/voice worked, I set it aside and continued working thru the stacks of unknown boards.
Just a note here.....I did find a bunch of other Stern 1000 series boards (sound, voice, bullsh!t color, etc) that I'll toss in with the sale of the full set.